Projector utility case



1945- A. B. COLEMAN 2,390,922

' PROJECTOR UTILITY CASE Filed Dec. 7, 1945 2 Sheets-Sheet 1 Inventor B,9mm

Dec. 11, 1945. A. B. COLEMAN 2,390,922

PROJECTOR UTILITY CASE Filed Dec. 7, 1945 2Sheets-Sheet 2 ra .5 1km WWWPatented Dec. 11, 1945 UNITED STATES PATENT v OFFICE Arnold BertColeman, Chicago, Ill.

Application December 7, 1943, Serial No. 513,282

1 Claim.

This invention relates to new and useful improvements in a case whichemploys certain characteristics especially adapted for use by operatorsof motion picture projectors, the principal object being to provide acase which employs certain electrical switching means, Whereby currentcan be supplied to the projector and also to floor lamps, all beingcontrolled conveniently by the operator of the projection machine.

Another object of the invention is to provide a compact apparatus fornot only housing reels of film, the projection machine and othermiscellaneous items, but wherein electrical requirements are satisfiedto a highly efficient and readily accessible extent.

Another important object of the invention is to provide a case of thecharacter stated which can serve as a stand for a projector, whenprojecting motion pictures.

Other objects and advantages of the invention will become apparent tothe reader of the following description.

In the drawings:

Figure 1 is a perspective view of the apparatus.

Figure 2 is a fragmentary front elevational view with the door in openposition.

Figure 3 is a horizontal sectional view on line 33 of Figure 1.

Figure 4 is a fragmentary enlarged detailed sectional view taken on theline 4-.4 of Figure 1.

Figure 5 is a fragmentary enlarged detailed sectional view taken on theline 5--5 of Figure 1.

Figure 6 is a plan view of a dual plug cord such as is used inconjunction with the present invention.

Figure '7 is a. diagrammatic view showing the electrical connectionsbetween the electrical elements employed.

Referring to the drawings, wherein like numerals designate like parts,it can be seen that numeral 5 generally refers to the case and thisconsists of a boxed portion A and a door B. The door B is hinged, as at6, to the box A and suitable fastening means I is provided for securingthe door to the box in closed position.

In the box portion A is a vertical partition 8 adjacent one wall of thebox and the space between the partition and the adjacent box wall isdivided by horizontal partitions 9, l0 and by a vertical partition l'lbetween the bottom of the box A and the horizontal partition Ill. Thus,this space is divided into compartments l2, I3, I4 and I5. Thecompartment l2 preferably has certain dividers l6 therein for holdingfilm reels. The compartment I3 is for miscellaneous items.

The compartment l5 may be used for electrical cords and the compartmentI4 is closed in to house an electrical receptacle.

In the remaining space of the box A, that is, the compartment l1, arestraps I8, l9 provided with a buckle 20 for holding a movie projectorfirmly in position.

Set in the top portion of the box A is a telltale lamp 2| havingsufficient candlepower to afford sufiicient light through an adjacentwindowed port 22 so that the operator may read indicia on the reel andhave illumination for other purposes. The tell-tale lamp 2| thereforeserves the dual purpose of indicating when the electrical features ofthe apparatus are in use and also afiording illumination.

A pocket 23 is provided in the upper portion of one side wall of the boxA, and in the back of this pocket are located three switches (preferablyof the toggle type) which are denoted by numerals 24, 25 and 26. At thispoint, it will be observed that the top of the box A is preferably ofdouble wall construction with the two walls spaced apart to accommodatenot only the lamp 2|, but also the switches 24, 25 and 26.

Located on a panel set flush in the lower portion of the same side wallof the box A is a single electrical receptacle 28, a double electricalreceptacle 29 and another single electrical receptacle 30.

As can be .seen in Figure '7, the switch 26 has one side connected tothe tell-tale lamp 2|, while the other side of the tell-tale lamp 2| isconnected by the conductor 22 to one side of each of the receptacles 28,29 and 30. A conductor 32 extends to one side of each of the switches24, 25 and 26, the remaining sides of the switches 24 and 25 beingconnected by conductors 33 and 34 to the remaining sides of thereceptacles 29 and 30.

It can now be seen that with a cord 35 having a plug 36 at each endthereof, one end of the cord can be connected with a supply receptacle,while the other is plugged into the receptacle 28.

Floor lamps (not shown) can be connected to the double receptacle 29 andcontrolled by the switch 24. The movie projector (not shown) can beplugged into the receptacle 30 and controlled by the switch 25.

As before stated, the tell-tale lamp 2| serves the dual purpose offurnishing some illumination for use by the operator and also as anindicator that the electrical apparatus is in operation.

While the foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention as claimed hereinafter.

Having described the claimed as new is:

In apparatus of the class described, a box haw ing sides and adouble-walled top forming an upper space in the box opening onto oneside of invention, what is said box,electricaL-phig-in receptacles {setinto 1 mole said side of the box *adjacent'to=the'bottom thereofincluding an input receptacle and a plurality of output receptacles,switches set into said space at said side of the box, and a tell-talelight in said space in the center of the top visible through the top ofthe box, one of said switches and the tell-tale light being connected incircuit with the input receptacle, the plurality of output receptaclesbeing each connected across the input receptacle, the other switchesbeing each connected in series with one of the output recep- "ARNOLD"BERT COLEMAN.

